the thrine cybugs need little bows on them,Starscream specifically needs a bell to keep him out of trouble
also if any of the thrine bugs(can you tell they’re my favorite) were to give their caretaker little ‘gifts’(things they find around the house ie. underneath the couch and tables),which one would it be? :3c
and tbh i think Skywarp probably needs a bell too, he'd be a little menace. at least you hear Starscream yelling when something in his plan goes awry 😂 Skywarp just continues making mischief and then you find out wayyyy later...
ooo... i could see any of the 3 of them doing that honestly. but they'd bring very different things and in very different manners GJFHFJS
Thundercracker would come back with things like flowers and petals, pretty lengths of yarn/thread and random objects he likes. either drops it in his keepers lap and runs off, or gives it to them and wants snuggles/pets. unfortunately, i also think he's liable to steal keys and other things like that, but he would give them back with a little prompting.
Starscream would "give" things by hoarding them then surreptitiously leaving them around the house in obvious places and hiding nearby until they are found. and he has STANDARDS! what those standards are? who knows. a heritage brooch holds the same value as a bottlecap. mostly shiny things though.
Skywarp would be a mixed bag, but he'd be insistent about depositing whatever he's found directly into his keepers hand. things he's probably given Buster: a button, handful of grass, cool looking stone, part of a dead bird (how...?), pocket lint, spring from a pen, weird leaf, one sock (where did the other one go?), half eaten mouthful of jelly, 20 bucks. you never know what you're gonna get.